The most common and most likely answer to this crossword clue is the 8 letter word INGESTED
I've seen this crossword clue in The Daily Telegraph
I
N
G
E
S
T
E
D
Buddy explains!

The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does INGESTED mean?
INGESTED verb- To take a substance (e.g. food) into the body of an organism, especially through the mouth and into the gastrointestinal tract.
- To bring or import into a system.